Recent content by roni1

Why we can't use radical to solve an equations with power greater than 4?

How can I make a curriculum to student, to explain the term Invertiable Matrix? What would I use to explain? [tools, whiteboard, papers. printed website pages...] How can I order the curriculum? What will be in the start of year and what will be next? This new material that I need to teach in...

LB is bisector of triangle ABC. suppose, there is a new triangle that called AED. alpha is a angle between LB to AD that is bisector of AED. The triangles can be on any place in the plane. What the value biggest angle ($$alpha$$) can be?

the property that the figure has like the father but you can say that the son have but so "fathers" (let call them father brothers) haven't. square is the son of rectangle. Not every rectangle can be a square, But every square is a rectangle. O.K. The square is the son and the rectangle is the...

If I arrange the 4-gon polygon by order as: a rectangle is a descendant of parallelogram and a square is a descendant of rectangle. What are the descendant that no have any descendants (in 4-gon figures)?

In Hebrew, one explain to me that: "Transitivity is a property (or attribute - I don't which word is correct) of property". So, (1) Which word is correct? (2) Why Transitivity is not standalone by itself? (3) Are there relations of other kind, that no standalone by themselves?

Why x can't be less or equal to zero?

Why the implicit function is a function?

Re: question The answer: The distance be between 0 to D. D = diameter. Am I right?

Re: question I mean to segments between the 3 points.

I have 3 point on a perimeter of circle. How I prove/show between every the two point of them there is always short way that the way between the other points?

Thanks... I have a question: Why the multiplicative indentity (1) distincit from the zero-element (0)?

What are the differences between ring and field? It's for an article that I write.

A student ask me the question: Why the other angles in Right angle triangle can't be more than 90 degrees? I want to answer him correctly to the question, What Should I Say to Him?

Hello, I explain in my class a way to take a function and change it to implict function as: y - f(x) = 0 I see that way in Wikipedia, so I used it the class. But my students ask me question that I don't know to answer: 1. Are there more ways to take a function and change it to implict function...